Error messages/login errors Enterprise Manager/Client

Hello,

We have successfully installed SQL 7.0 Beta and migrated files from a SQL 6.5 database. Trying to connect via Client software
in a test case, prior to full client installations in our organization.

Getting client login error messages, even tho' we are using the right passwords for SQL login.

On same computers(2) tried installing the Enterprise Manager and receive connection error messages, as follows:

A connection could not be established to _____. [Microsoft][ODBC SqL Server Driver][TCP/IP Sockets]General network error. Check
your network documentation. [Microsoft][ODBC SqL Server Driver][TCP/IP Sockets]ConnectionOpen [gethostbyname{}{}].

A third computer is able to connect with the same settings in Enterprise Manager.

Please help.

Thanks,

JJones